Practice Key Points Covered (50.3.1) - Common Base and Common Gate Amplifiers : Analysis (Part B)
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Key Points Covered

Practice - Key Points Covered

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Practice Questions

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Question 1 Easy

What does 'unloaded condition' mean in a transistor circuit?

💡 Hint: Think about how a garden hose works without a nozzle!

Question 2 Easy

What does the common base configuration primarily serve as?

💡 Hint: Consider the input and output flow characteristics.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the purpose of grounding the base in a common base configuration?

To create an unloaded condition
To increase input resistance
To reduce output voltage

💡 Hint: Consider why we want to short certain components.

Question 2

True or False: Current gain in a common base configuration is typically less than 1.

True
False

💡 Hint: Recall the key points we discussed about the transistor characteristics.

2 more questions available

Challenge Problems

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Challenge 1 Hard

If a transistor in a common base configuration has an input current of 40 μA and an output current of 39.5 μA, calculate the current gain and discuss why it is less than 1.

💡 Hint: Reflect on the physical limitations and resistances affecting current transmission.

Challenge 2 Hard

Design a simple common gate configuration using a MOSFET and calculate the expected current gain if the input current is anticipated to be 50 μA.

💡 Hint: Consider the properties of MOSFETs and their lack of source resistance impact.

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